I'm using Bluehost which gives the option to set up a cron job with the command, and then they give you settings options for setting the timing the job should run. I think I have these commands set up properly, but I'm not sure. The file they're getting is are .xml files. And I'm using them with WP All Import which gave me everything to use in the command ( I replaced the actual username with username - but I know that the client's username would go there ).
wget -q -O /dev/null "/home/username/public_html/wp-cron.php?import_key=tG.IEkYZ&import_id=4&action=trigger"
wget -q -O /dev/null "/home/username/public_html/wp-cron.php?import_key=tG.IEkYZ&import_id=4&action=processing"
wget -q -O /dev/null "/home/username/public_html/wp-cron.php?import_key=tG.IEkYZ&import_id=5&action=trigger"
wget -q -O /dev/null "/home/username/public_html/wp-cron.php?import_key=tG.IEkYZ&import_id=5&action=processing"
/path/to/php /home/username/public_html/wp-cron.php?import_key=tG.IEkYZ&import_id=5&action=processing
I've changed it and will see if that works.